Campus Units
Physics and Astronomy
Document Type
Article
Publication Version
Published Version
Publication Date
3-14-2013
Journal or Book Title
Physical Review C
Volume
87
Issue
3
First Page
034904
DOI
10.1103/PhysRevC.87.034904
Abstract
We present measured J/psi production rates in d + Au collisions at root s(NN) = 200 GeV over broad ranges of transverse momentum (p(T) = 0-14 GeV/c) and rapidity (-2.2 < y < 2.2). We construct the nuclear-modification factor R-dAu for these kinematics and as a function of collision centrality (related to impact parameter for the d + Au collision). We find that the modification is largest for collisions with small impact parameters and observe a suppression (R-dAu < 1) for p(T) < 4 GeV/c at positive rapidities. At negative rapidity we observe a suppression for p(T) < 2 GeV/c then an enhancement (R-dAu > 1) for p(T) > 2 GeV/c. The observed enhancement at negative rapidity has implications for the interpretation of the observed modification in heavy-ion collisions at high p(T).
Copyright Owner
American Physical Society
Copyright Date
2013
Language
en
File Format
application/pdf
Recommended Citation
Adare, Andrew; Dion, Alan; Hill, John C.; Kempel, Todd; Lajoie, John G.; Lebedev, Alexandre; Ogilvie, Craig; Pei, H.; Rosati, Marzia; Silva, C. L.; Wei, Feng; et al.; and PHENIX Collaboration, "Transverse-momentum dependence of the J/psi nuclear modification in d+Au collisions at root s(NN)=200 GeV" (2013). Physics and Astronomy Publications. 249.
https://lib.dr.iastate.edu/physastro_pubs/249
Comments
This is an article from Physical Review C 87 (2013): 034904-1, doi:10.1103/PhysRevC.87.034904. Posted with permission.